Means for filtering streams and the like.



No. 815,722. PATENTED MAR. 20,1906.

` T.LYD0N. MEANS POR PILTBRING STREAM-s AND THE LIKE.

APPLIUATION FILED 00T. 17,1905.

j H) Hm mi? UNITED STATES `PATENT OFFICE.

TiMorHYLYnoN, or NEw'YoRnN. Y. ,f

` MEANS FOR FILTERING STREAMS lAND THE LIKE.

No. 815,722. v

Specification of Letters Patent.- Appiimion filed october 17,1905.Vserai No. 283,140.

Ik'atented lifllarch 20, 1906.

' 'provements in means for clarifying the water y of running streams,and 1s based, primarily,

upon the improvements described and claimed in my Letters Patent No. 719,240, granted to me January 27, 1903.

The patented invention comprehended a series of pure-waterdischarge-pipes arranged to carry the surface water of a running streamto the city mains and a drain-pipe extending along the bottom of thestream in the rear of a dam or within a reservoir, said drain-pipeextending along the bottom and tapering from its discharge end to itsvreceiving end and being provided in lits walls with numerousintake-apertures designed to carry off slime and other impurities fromthe bottom of the stream or reservoir.

, The present inventi on has for its object improved means forclarifying the water of running streams, said means employing orembodying the tapered pipes of my prior patent before mentioned andconsisting in addition vthereto in the novel arrangement of said pipesand their combination with supplementary dams; and it also consists inthe arrangement of such pipes whereby pure water only'is insured to bedischarged i-n the mains, while the partly-cloudy or impure water isdirected laterally from the main stream and may be utilized for variouspurposes. If this impure or muddy water contains sufiiv cientsediment,'it may beinits lateral deflection utilized for filling marshesor swampy places. l

In the accompanying drawings, Figure 1 is a plan view of my invention,and Fig. 2 is a vertical longitudinal section thereof. y i Referringtothe drawings, the referencenumeral 1 -designates a running stream ofany depth or width, my inventionv being adaptable to all conditions justas they may be found. The numeral 2 designates lthe breast of a damthrown across said stream, in its preferred structure said damconsisting of masonry provided with a strengthening portion 3, an arch 4producing a lateral-extendying draw-off passage, and a facing-wall 5,

which is preferably inclined, as shown, and -is provided with anydesired number of ports or passages 6, through which the water may gainaccess4 to the lateral draw-off passage and pass therethrough to thegate-house or mam.

At any desired intervals in the stream are built supplemental dams 7.Inthis instance said dams are three in number and extend across thestream from side to side thereof. It is to be understood that any numberof .these supplemental dams may be employed and at different intervalsapart, according to the conditions existing. In the present instancealso said dams are formed of any number of rows of spiles or piling, andtheyv extend in an oblique direction, as indicated in Fig. 1. Beyondeach supplemental dam 7 is located one of the tapering drain-pipes 8,before referred to, said pipes being provided on their upper sides withapertures 9. The

drain-pipes 8 also extend obliquely and are of such length throughA thebank of the stream that they will discharge their contents into a branchstream or any other portion of the ground and at any desired distancefrom the main stream. They are located on the bottom of the main stream,and as. the stream flows toward the dam the slime and sediment willcreep along the bottom andv by suc- |tion will be drawn 0E through theapertures 9 and pipes 8'to the desired point where it is intended theslime and other impurities shall be discharged. In the preferredembodiment of the invention that drain-pipe which is located farthestfrom the dam is provided with apertures of relatively large size, andthel apertures of the respective other drain-pipes as the dam isapproached are relatively smaller. I'Ience thelarger articles, such asgravel and stone or other matter to be laterally discharged, areintercepted by the rst-named IOO drain-tube, while the others insuccession instood that the branch stream may be of any length. As thestream flows toward the dam the surface Water Will pass successivelyover the supplemental dams and be received in the main in a clarifiedstate, While the drainpipes Will successively draw off the slime orother cloudy impurities from the bottom.

I claim as my inventionl. Means for clarifying the Water of runningstreams and the like, comprising one or more supplemental dams obliquelydisposed across the stream, and drain-pipes arranged beyond each of saidsupplemental dams, said drain-pipes being provided in their upper sidesWith apertures and being arranged to discharge at a point some distancefrom the stream in a lateral direction.

TIMOTHY LYDON.

Witnesses:

GRAFTON L. McGILL, FREDERICK S. STITT.

